Malone Specialty Inc. offers a Carbon Steel Male Metric to Tube 90º with Adjustable Locknut & O-Ring as well as a 316 Stainless Steel Male Metric Parallel to Tube 90° Elbows with an adjustable locknut and O-Ring, in various sizes. Our Metric Parallel to Tube Elbows comply with the ISO 6149, and the DIN 3859-1 specifications. These Metric Elbows come complete with a Metric Tube Nut and Tube Sleeve for each side, and uses a bite type connection style for the tube end. The Metric Parallel end is to be used as a port style connection, and is not suitable as a tube style connection.